Under what conditions can an active lane change assist system perform a lane change?

You answered correctly. For an active lane change assist system to make a lane change, it must detect a roadway with clear, adequate lane markings and multiple lanes. This ensures the system can accurately identify where to move. Additionally, it must verify that no vehicles are present in the safety zone beside your vehicle to avoid collisions. A gap in oncoming traffic is not required because lane changing typically happens among vehicles moving in the same direction, not against oncoming traffic. Remember these technical and safety requirements when thinking about how assist systems function on German roads.